The red-tailed hawk is one of the most common raptors of North America, and It shares a rating with the ferruginous hawk as the largest North American Buteo. Their size is 19 to 25 inches with a weight 2 to 3.5 pounds. They have a wingspan 46 to 58 inches. They can be white, chocolate brown, or black, with brown eyes, and white below, with brown streaks on their lower neck and a broad band of dark streaking across their white belly. And, of course, their tail is brick-red.